{"action":"Upgrade mcp-atlassian to 0.22.0 or later.","affected":[{"fixed":"0.22.0","introduced":"0"}],"component":"mcp-atlassian","cve_ids":["CVE-2026-77253"],"ecosystem":"PyPI","epss":0.00373,"exploited":false,"fixed_versions":["0.22.0"],"ghsa_id":"GHSA-vc25-24vv-fxxm","id":"tcs_01M5KFZTTPNAX4F6SRC07YJPM3","modified_at":"2026-10-01T17:55:53.636325142Z","published_at":"2026-09-22T20:34:50Z","references":["https://osv.dev/vulnerability/GHSA-vc25-24vv-fxxm","https://github.com/sooperset/mcp-atlassian/security/advisories/GHSA-vc25-24vv-fxxm","https://github.com/sooperset/mcp-atlassian/pull/1448","https://github.com/sooperset/mcp-atlassian/commit/b041733473f95119dd539542a43c280737a8e460","https://github.com/sooperset/mcp-atlassian","https://github.com/sooperset/mcp-atlassian/releases/tag/v0.22.0"],"severity":{"label":"high","score":7.1},"sources":[{"source":"osv","source_id":"GHSA-vc25-24vv-fxxm","url":"https://osv.dev/vulnerability/GHSA-vc25-24vv-fxxm"}],"summary":"MCP Atlassian: Jira and Confluence attachment upload tools can read arbitrary server-local files"}